.initial-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;

  span {
    margin: 0.1rem;
    width: 0.5rem;
    height: 2rem;
    border-radius: 0.5rem;
    background: lightgreen;
    -webkit-animation: initial-loading 1s ease infinite;
  }

  span:nth-child(2) {
    -webkit-animation-delay: 0.2s;
  }

  span:nth-child(3) {
    -webkit-animation-delay: 0.4s;
  }

  span:nth-child(4) {
    -webkit-animation-delay: 0.6s;
  }

  span:nth-child(5) {
    -webkit-animation-delay: 0.8s;
  }

}

@-webkit-keyframes initial-loading {
  0%, 100% {
    height: 2rem;
    background: lightgreen;
  }
  50% {
    height: 3rem;
    margin: -15px 0;
    background: lightblue;
  }
}

